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Tert-Butylhydroquinone (also known as tert-butyl hydroquinone, TBHQ for short), with the chemical formula C10H14O2, is a phenol.
It is a white crystalline powder with a special smell, composed of hydroquinone plus a tert-butyl group.
Tert-Butylhydroquinone is an aromatic organic compound derived from hydroquinone (a known stimulant mainly used as a whitening ingredient).
It has the characteristics of high efficiency, bacteriostasis, economy and so on. It is widely used in oil, food, medicine and feed. It is a new generation of oil antioxidant.
Tert-Butylhydroquinone is white to light gray crystal or crystalline powder in general state, with a very slight special fragrance.
The characteristic is that it is almost insoluble in water (about 5%) and soluble in some organic solvents, such as ethanol, ethyl acetate, ether, etc.
Tert-Butylhydroquinone is suitable for crude oil and highly unsaturated fats, and has anti-corruption effect on most fats, such as sunflower oil.
The advantages of antioxidant TBHQ: -OH has high activity, excellent resistance to polymerization and high temperature resistance.
The antioxidant properties of tert-butyl hydroquinone (TBHQ) tert-butyl hydroquinone has a good antioxidant effect.
In addition to its antioxidant effect, TBHQ additionally has a certain anti-bacterial effect.
which can successfully inhibit the growth of bacteria such as Bacillus subtilis, Staphylococcus aureus, Escherichia coli as well as Aspergillus niger, Aspergillus versicolor, Aspergillus flavus and other microbes.
The minimum inhibitory concentration for bacteria and yeast is 0.005%-0.01%, and for molds, it is 0.005%-0.028%.
Under acidic conditions, TBHQ has a strong antibacterial effect. For example, when the pH of Proteus is equal to 5.5, 0.02% of TBHQ can be completely inhibited, and when the pH is equal to 7.5, 0.035% can not be completely inhibited.
When added to any fat or oily food, it will not produce peculiar smell or smell, and has good oil solubility.
Tert-Butylhydroquinone does not change color when it encounters iron and copper, but it can turn to pink if alkali exists.
The characteristics of the use of TBHQ are: low toxicity and low dose.
Tert-butyl hydroquinone is a highly effective antioxidant.
In food, tert-butyl hydroquinone is used as an antioxidant for vegetable oils and a variety of edible animal fats and oils.
It has superior antioxidant properties and has stronger antioxidant capacity than BHT, BHA, PG (Propyl Gallate) and Vitamin E.
As far as vegetable oils are concerned, the order of their antioxidant capacity is: TBHQ> PG> BHT> BHA.
It does not transform shade when subjected to iron, neither does it alter the taste or smell of food.
It can also be utilized with various other preservatives such as butyl hydroxyanisole (BHA).
Tert-Butylhydroquinone is extensively used in food because of its extensive shelf life.
It can be made use of in edible fats, fried foods, dried out fish products, biscuits, instantaneous noodles, quick-cooked rice, canister dried out fruits, healed meat items and also other foods.
TBHQ is resistant to high temperature and also can be utilized for instant noodles, pastries and also various other deep-fried foods. The optimum temperature can be over 230 ℃.
TBHQ has a great “carry-in” effect on the food during the frying procedure (it serves as the fat enters the food), but this effect is poor throughout the food baking procedure, and also it can enhance this property when it is mixed with BHA.
Adding TBHQ to food can not just postpone the oxidative wear and tear of oils as well as fats, but additionally hinder a selection of bacteria.
In commercial production, it can be made use of as a stabilizer to prevent the self-polymerization of organic peroxides.
It can additionally be included in biofuels as an anti-corrosion agent.
In fragrances, TBHQ can be made use of as a fixative to inhibit volatilization as well as improve security.
In addition, it is likewise made use of in paints, varnishes and resins.
It can prevent oxidation of the majority of greases, plastics, rubbers, etc.
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